This hotel has become a Dubai architectural icon, just as its owners wanted, with its unmistakable sail shape. The support posts for its man-made island descend 147 ft. into the seabed—incidentally, its location was only chosen because it would have cast too much shade had it been built on the beach. Guests can arrive in style by helicopter or Rolls Royce, and for around $130 per person, they can enjoy their afternoon tea in the Sky View Bar.